This website has Science Project Kits to test if drinking water is safe! >>Guess what? No more spam link and no more zashi :)<< Clay A comprehensive test kit for comparing the water quality! Results on the spot! Test for: Lead, Bacteria, Pesticides, Nitrates, Nitrites, Chlorine Hardness & pH No lab require! Most results are out in less than 10 minutes except for Bacteria test, that needs 48 hours so that bacteria can grow. Very easy to use and easy to follow instructions! They also have printable charts and instructions great for Science Project for 3rd to 8th graders!